Hi, On Mon, 15 Sep 2014 11:01:33 -0400 (EDT) Alan Stern <st...@rowland.harvard.edu> wrote: > On Sun, 14 Sep 2014, Mark wrote: > > > Shuttle Technology/SCM Microsystems was the OEM manufacturer of SCSI-USB > > converter cables sold by various companies including Adaptec [untested > > patch posted recently], Ariston Technologies, Belkin [*], Buffalo, > > Entrega/Xircom [patch posted recently], Microtech [*], Newer Technology > > [*], Olympus[*] > > *: quirk already in unusual-devs.h > > > > The ability to specify the SCM_MULT_TARG quirk on the command line could > > be useful. At least the Ariston and Buffalo products don't have entries in > > unusual-devs.h. I hope to write a patch, but would like some advice on the > > best approach. > > Devices with this capability are so rare, it didn't seem worthwhile > adding it to the list of recognized quirks for the module parameter. > > > ... > > Is one of those options preferable? Or maybe something else? > > It's probably better just to rely on entries to the unusual_devs.h > file. Those are automatically be available to anyone with an > up-to-date kernel, with no need for messing around with module > parameters.
The trouble is though, that requires the user compile their own kernel. Which may not be practical due to lack of knowledge or e.g. booting from a live CD. I can submit patches for devices I don't own to cover more (hopefully almost all) SCM-based devices, e.g. the USBConnect 2000 patch I submitted recently. But I wasn't sure what values to use for bcdDeviceMin and bcdDeviceMax. 0 and 0x9999 would probably be best, so I'll repost the patch with that change. Another issue relates to manufacturer USB ID screw-ups. The Buffalo USB-SCSI cable is a good example. According to the Windows INF file available from http://buffalo.jp/download/driver/hd/mos-s640usb.html its USB ID is 0411:0001. However, according to the INF file from http://buffalo.jp/download/driver/lan/lua-tx.html the LUA-TX USB-Ethernet adapter can have ID 0411:0005 or 0411:0001... sigh. Given that, would it be possible/advisable to have an unusual-devs.h entry for the Buffalo USB-SCSI cable? Mark -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
